(19)

(11)

EP 0 990 187 A1

(12)

(43) Date of publication: 05.04.2000 Bulletin 2000/14 (21) Application number: 99909153.1 (22) Date of filing: 06.04.1999

(51) International Patent Classification (IPC)7: G02B 7/105, G02B 26/10, G09G 3/26, G11B 7/013, G11B 7/095, H04N 9/10 (86) International application number: PCT/IB9900/584 (87) International publication number: WO 9954/774 (28.10.1999 Gazette 1999/43)

(84) Designated Contracting States: BE DE FR GB IT (30) Priority: 17.04.1998 EP 98201239 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: BAARTMAN, Jan, P. NL-5656 AA Eindhoven (NL) AARTS, Jan, W. NL-5656 AA Eindhoven (NL) (74) Representative: Wolfs, Marc Johannes Maria  INTERNATIONAAL OCTROOIBUREAU B.V.,Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)